Priming device for internal-combustion engines



July 27 1926. L i y l 1,594,122 l Paul-NG DEVICE "PQR INTERNAL c'ouusTloN ENGINES md'Jamo. 1923 gri/wanton viagra v Patented .uly 27, 1926.

UNITED STATES PATE'NT OFFICE.A

JAY c; RUSSELL, or FiNnLnY, omo;

- e rainure, DEVICE non iNTERNAncoMBnsTioN ENGINES. l

yApplication filed January 301923." Serial No. 615,880.2

This invention relates to improvements in priming devices Vforv carbureters, and more particularly to means attachable to the overi i'iow pipe of any type of carburetenfor gov# erning and regulating the inflow of the additional air supply through said pipe.

' An object of the invention isto provide a suitable valve means in the overflow passage of a carbureter, which may be remotely con-y trolled to venrich the mixture `in the carbureter when the valve is closed, and to lean the mixture when the'valve is open.

A further obj ect of the invention is to control the flow of air into the carbureter through the overiow vpipe and thereby to control the richness of the explosive mixture there formed.

other Objects Wm appear iS the descrip-4 tion proceeds.

Iny the accompanying drawings which form a part of'my application,

Figure 1 is a side elevation of an automobile engine and carbureter with my invention attached thereto, and

Figure 2 is a sectional view of a portion of a carbureter, such as appears inthe patent to Holley No. 1,121,630 of December 22,

1914, showingV the positioning of the overflow opening and pet cockfattached thereto.

Like characters rof reference are `used throughout the following specification and the accompanying claims to designate corresponding parts.

An automobile 1 is providedwith a usual type of internal'combustion engine 2, and

dash board 3. e v

The carbureter 4 is attached to the intake manifold 5 of the engine 2, and s provided with the overiow pipe or passage 6, which extends between the mixing chamber of the carbureter and the outside thereof.

My invention consists of avvalve or pet cock 7 removably positioned in the koveriiow passage 6, and having an operating rod- 8 attached thereto, which yin turn extends up through the dash board 8, and terminates in an operating handle 9. u y Y My improvement is adapted to be used in connection with any type of carburetor, but

is shown in Figure 2 ofthe drawings, as used inconnection with a slightlyvmodiiied formr of Holley carbureter, as described and claimed in Patent 1,121,630 of i i cember 22, 1914. I

Heretofore the overlow'passage in a icar-l bureter was only used todischarge the sur plusfof fuel if the cai'fbureter'becameflood v ed,no"thou'ght being given to the admission or controlling ofthe additional air which `enters through the overflow passage, and mixes 'with the main air supply inthe mixing chamber. It is my discovery thatby placing a valvejin theoverflow passage, the

'additional air supply kwhich entersthere' through, maybe controlled and regulated to enrich the. mixture in the carbureter when the valve isi-closed, and to lean the mixture when thevalve is open. This additional air i supply when properly controlled by a valve, materially aids" in starting an internal combustion engine,` especially in cold weather. When it is vdesired to'start-,an engine, the

valve inthe overlowpassage is closed to cut ofi' the additional air supply, thereby making avery rich mixture in the carbureter,

engine has run asuiicient time to become i which facilitates easy starting.. When-the l l warmed up to an'eiicientoperating temperature, the valve in the overflow passage will be opened, andkept openv duringy the runnin period. y

soV

any `minor changes in detail of construcbustion engine, a carburetervhavinga car' bureting tube, an air passage formed about vsaid tube, an overow opening extendin from said air passage to the exterior of saiv I carbureter,.and Imeans for selectively opening and closing said overflowlopening. y

In combination with an internal combustion engine, a carbureter having .a carbureting tube, an air passage formed about said tube, an overiow opening extending yfrom said air passage to the exterior of said carbureten'and a remotely controlled valve for selectively opening and closing said overow opening.` n

JAY c. eussent.k

l In testimony whereof lI aiix my signature." y 

